Home / 1,186,561.20-1,637,002.47-877,206.60

Finding the Fourth Proportional to 1,186,561.20, 1,637,002.47 and 877,206.60

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Solution

The fourth proportional to 1,186,561.20, 1,637,002.47 and 877,206.60 is: 1,210,210.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,561.20 : 1,637,002.47 = 877,206.60 : x
  2. Step 2: Convert to fraction form
    1,186,561.20/1,637,002.47 = 877,206.60/x
  3. Step 3: Cross multiply
    1,186,561.20x = 1,637,002.47 × 877,206.60
  4. Step 4: Simplify right side
    1,186,561.20x = 1,435,989,370,900.30
  5. Step 5: Solve for x
    x = 1,435,989,370,900.30/1,186,561.20
  6. Step 6: Final answer
    x = 1,210,210.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.